202 CXLI. CENTROLEPIDES, [ Aphelia. 
or 3 male flowers like those of A. pumilio, the upper bracts slightly 
ciliate on the margin, the keel acute and ciliate or the cilia more or 
less connected in a dorsal wing, each enclosing an ovary with a scale 
not so broad as in 4. pumilio—Brizula Muelleri, Hieron. Centrol. 93. 
W. Australia, Drummond, n. 934 and suppl. n. 44 and 119; Stirling Range, 
F. Mueller. 
3. CENTROLEPIS, Labill. 
(DeSvauxia and Alepyrum, R. Br.) 
o ilum.—Small tufted plants mostly annuals. Leaves linear- 
filiform, all radical. Seapes simple, terminating in the 2 bracts either 
close together or one a little distant from the other, both flowering 9r 
the lower one empty. 
- The genus is limited to Australia with the exception of one species, closely 
allied to an Australian one, recently found by Hance in South China. 
Spikes narrow, containing 1 to 4 flowers, the outer bracts 
erect and glabrous, inner scales few and narrow or 
none. 
Flowers 1 or very rarely 2 in the spike. Leaves 3 or 4 
ines long. 
Scape shorter than the almost sessile 
Spike . . . 1. C. humillima. 
pe usually 1 in. long or more. Outer bract 
i e . LI * LI . 
CL ar IR UR 2. C. polygyna. 
Flowers 2 to 4 in the spike. 
pe 1 to 3 in. Outer bract with a long slender 
An inner scale to each flower. Carpels : 
,rarely20rl. . . 3. C. alepyroides. 
Scape under 1 in. Outer bract with a long awn. 
nner scales very prominent . 10, C. aristata, val- 
Scape about 1 in. Leaves very short. Outer 
scales. . . 4. C. mutica. 
5. C. glabra. 
